Dispite having room, UI does not show full `namespace`, and `name`

[czchen]

Hi,

We found that GPM UI does not show full namespace and name, like the following screenshot, in constraints violation. It cause usability problem that we cannot easily identify the problem and fix it.

[ralgozino]

This is a regression on the last update to the UI framework, previously the font was smaller for sure. Thanks for reporting it, we'll improve this.